🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.47 AU - 0.69 AU

Year: 166 Days

Day: 26.8 Hours

Environment

Temp: 148 °C

Axial Tilt: 113.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.62 AU - 0.9 AU

Year: 248 Days

Day: 39.4 Hours

Environment

Temp: 122 °C

Axial Tilt: 9.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.97 AU - 1.19 AU

Year: 421 Days

Day: 38.4 Hours

Environment

Temp: 11 °C

Axial Tilt: 47.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.98 AU - 3.52 AU

Year: 2196 Days

Day: 15.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,612,674 km

• M1: 70,161 km (0.114 R)
• M2: 435,180 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.2

Radius: 10.1

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.6 AU - 7.34 AU

Year: 6167 Days

Day: 6.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,612,674 km

• M1: 126,560 km (0.112 R)
• M2: 672,891 km (0.08 R)
• M3: 987,047 km (0.101 R)
• M4: 1,818,661 km (0.066 R)
• M5: 2,454,003 km (0.107 R)
• M6: 4,164,206 km (0.035 R)
• M7: 4,776,959 km (0.094 R)
• M8: 5,634,155 km (0.095 R)
• M9: 6,801,467 km (0.088 R)
• M10: 7,537,190 km (0.1 R)
• M11: 9,166,759 km (0.104 R)
• M12: 11,068,597 km (0.076 R)
• M13: 11,826,011 km (0.099 R)
• M14: 12,617,533 km (0.075 R)
• M15: 13,443,912 km (0.11 R)
• M16: 14,188,909 km (0.111 R)
• M17: 15,204,529 km (0.107 R)
• M18: 16,013,255 km (0.118 R)
• M19: 16,981,752 km (0.1 R)
• M20: 17,648,809 km (0.054 R)
• M21: 18,541,908 km (0.098 R)
• M22: 18,893,313 km (0.091 R)
• M23: 19,974,457 km (0.092 R)
• M24: 22,977,934 km (0.091 R)
• M25: 24,968,782 km (0.1 R)
• M26: 26,269,984 km (0.069 R)
• M27: 29,385,959 km (0.1 R)
• M28: 31,528,499 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.9

Radius: 8.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.42 AU - 7.86 AU

Year: 6412 Days

Day: 8.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,612,674 km

• M1: 102,325 km (0.112 R)
• M2: 384,616 km (0.096 R)
• M3: 708,047 km (0.08 R)
• M4: 1,081,293 km (0.09 R)
• M5: 1,441,974 km (0.042 R)
• M6: 2,319,066 km (0.086 R)
• M7: 2,772,647 km (0.072 R)
• M8: 4,223,447 km (0.091 R)
• M9: 5,952,798 km (0.117 R)
• M10: 7,868,998 km (0.109 R)
• M11: 8,177,768 km (0.1 R)
• M12: 8,530,370 km (0.118 R)
• M13: 9,078,347 km (0.079 R)
• M14: 10,654,510 km (0.1 R)
• M15: 13,494,177 km (0.09 R)
• M16: 16,521,888 km (0.079 R)
• M17: 22,412,304 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.9

Radius: 9.6

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.8 AU - 11.82 AU

Year: 13319 Days

Day: 6.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,612,674 km

• M1: 119,379 km (0.098 R)
• M2: 455,675 km (0.053 R)
• M3: 1,000,062 km (0.103 R)
• M4: 1,510,789 km (0.086 R)
• M5: 5,056,707 km (0.109 R)
• M6: 7,206,279 km (0.107 R)
• M7: 7,587,454 km (0.056 R)
• M8: 11,822,720 km (0.104 R)
• M9: 12,293,953 km (0.087 R)
• M10: 13,024,140 km (0.088 R)
• M11: 13,590,667 km (0.076 R)
• M12: 14,239,174 km (0.075 R)
• M13: 16,599,679 km (0.089 R)
• M14: 17,719,569 km (0.073 R)
• M15: 20,951,331 km (0.099 R)
• M16: 23,342,653 km (0.115 R)
• M17: 24,084,659 km (0.103 R)
• M18: 29,403,910 km (0.074 R)
• M19: 36,685,587 km (0.085 R)
• M20: 45,944,947 km (0.072 R)
• M21: 53,232,009 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642

Radius: 3.7

Gravity: 46.9 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 13.44 AU - 16.3 AU

Year: 21488 Days

Day: 20.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,612,674 km

• M1: 46,525 km (0.076 R)
• M2: 260,151 km (0.104 R)
• M3: 384,167 km (0.11 R)
• M4: 971,339 km (0.095 R)
• M5: 1,180,028 km (0.113 R)
• M6: 1,371,064 km (0.117 R)
• M7: 2,462,830 km (0.08 R)
• M8: 3,196,159 km (0.066 R)
• M9: 3,627,898 km (0.089 R)
• M10: 5,666,019 km (0.089 R)
• M11: 5,871,118 km (0.071 R)
• M12: 10,833,728 km (0.064 R)
• M13: 11,536,988 km (0.113 R)
• M14: 12,000,143 km (0.038 R)
• M15: 15,594,680 km (0.116 R)
• M16: 19,473,155 km (0.08 R)
• M17: 22,387,471 km (0.115 R)
• M18: 23,107,037 km (0.12 R)
• M19: 29,549,319 km (0.093 R)
• M20: 29,794,810 km (0.027 R)
• M21: 35,963,627 km (0.078 R)
• M22: 36,524,769 km (0.108 R)
• M23: 40,165,233 km (0.076 R)
• M24: 42,774,370 km (0.103 R)
• M25: 49,010,058 km (0.096 R)
• M26: 50,570,812 km (0.113 R)
• M27: 51,274,969 km (0.1 R)
• M28: 57,717,402 km (0.12 R)
• M29: 61,032,640 km (0.063 R)
• M30: 66,134,975 km (0.11 R)
• M31: 69,112,870 km (0.098 R)
• M32: 73,071,080 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.2

Radius: 6.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 15.01 AU - 22.05 AU

Year: 29891 Days

Day: 22.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,612,674 km

• M1: 78,389 km (0.075 R)
• M2: 480,658 km (0.036 R)
• M3: 727,494 km (0.08 R)
• M4: 934,837 km (0.026 R)
• M5: 1,776,624 km (0.093 R)
• M6: 2,710,115 km (0.06 R)
• M7: 4,652,195 km (0.099 R)
• M8: 5,129,711 km (0.099 R)
• M9: 6,303,007 km (0.06 R)
• M10: 6,801,766 km (0.102 R)
• M11: 7,017,337 km (0.1 R)
• M12: 8,020,091 km (0.093 R)
• M13: 13,394,096 km (0.076 R)
• M14: 15,220,387 km (0.099 R)
• M15: 17,286,034 km (0.109 R)
• M16: 20,232,364 km (0.063 R)
• M17: 21,777,411 km (0.108 R)
• M18: 27,858,415 km (0.106 R)
• M19: 37,066,912 km (0.103 R)
• M20: 39,510,892 km (0.03 R)
• M21: 40,630,931 km (0.114 R)
• M22: 41,628,001 km (0.065 R)
• M23: 49,713,317 km (0.104 R)
• M24: 50,362,722 km (0.043 R)
• M25: 56,994,994 km (0.076 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 11,119 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit